Question about HP LaserJet 4700DN Printer

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HP LaserJet 4700DN Duplexer Jams

This machine has constant jams at the duplexer. it will send the second sheet into the duplex unit before it retracts the first one fed into it.
any known issues?

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  • Troy Scott
    Troy Scott May 11, 2010

    is it giving an error number? Does this printer have a duplex tray that can be removed or is it duplex internally?

  • Anonymous Mar 28, 2014

    The Duplex Feature Will Not Turn On In This Brand New Machine

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Hmmm..check the paper for riffling(with fingers before placing in tray)..and the rollers can get slippery, after a period of time...

check your computer warranty for FREE here

Posted on Feb 22, 2008

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1 Answer

Hp4200 duplexer paper jam


If it jams every time, remove the duplexer and look for a piece of paper on the metal plate as the paper feeds out of the duplexer and back into the machine. Also use a file folder to push any jammed paper out from inside the duplex module.

Mar 14, 2015 | HP LaserJet 4200 Printer

1 Answer

How can I stop paper jams when using duplex printing?


1. Replace "Roller top out put bin" (RL1-0527-000CN)
2. Clean duplexer unit & chk the rollers in size change assembly(RM1-1318-000CN)

Apr 29, 2014 | HP LaserJet 1320tn Printer

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Duplexer problem


There are several thing which may cause unexpected jams in the duplex tray...,
1. first thing to do is eliminate all other possibilities by removing the netCard/Net connection Parralel connection so the machine is Stand Alone. make sure there is paper in the feed cassette 2 ( paper Tray)
press the TICK to enter menu
scroll down to diagnostic- press TICK
scroll down to paper path test - press Tick
scroll down to Source and select tray 2
scroll down to Duplex And select YES
( if the duplex option is not visible here then there is a connection/seating problem with the duplex tray)
Scroll down to copies and select 10
scroll up to print test page and press tick
the machine should now start duplexing 10 pages,
if you get the same error ( 1 page enters then jams)
it could be a dirty/snapped paper entry sensor,( looks like a little plastic match stick that protrudes into the feed path of the paper)
use a can of pressurised air to Blast any dust away from this arm and the surrounding area being careful to follow the Paper sensor Arm back to the sensor and blasting this as well-
Duplexer tray are cheaper than an engineer call out, if the fix above fails , your cheapest option may be a replacement Duplexer tray, available from most HP office equipment Stores as well as Belmonte Business Equipment.

Jul 23, 2013 | HP LaserJet 4250n Printer

1 Answer

It gives me a bad duplexer connection error, im not sure where a duplexer is located


The duplexer on this machine is mounted right on the top where the paper exits. It should have a clear paper guide on it. When duplexing,the paper comes out here, and then reenters the machine.I would try reseating the duplexer as I have had them dislodged by users sometimes when they are removing jams.

Jul 28, 2011 | HP LaserJet 4700 Printer

1 Answer

JAM IN DUPLEXER CONSTANT ON DUPLEX JOBS FINE OTHERWISE.I HAVE REPLACED DUPLEXER,ENGINE POWER BOARD,DCE CONTROLER,REVERSING ASSEMBLY,FUSER UNIT. ANY IDEAS.


You've done everything I would have done and more.
How about you installing a DOA duplexer. At this point I would change it again. Is there another printer that you can swap duplexers with?
There is a paper path sensor test (letter H) and manual sensor test . I don't know if the Component test checks the duplexer, but you should be able to find out.
Is the printer still under warranty? Can you call HP or are you an HP tech and you can call 2nd level support.
Just a thought....when you run a Config sheet, does it show the duplexer?

May 18, 2011 | HP LaserJet M4345 MultiFunction Printer

1 Answer

My HP4100 DTN is continually having paper jams for no obvious reason. What can I do to resolve this? (I mean, I know how to resolve the jams, but how can I make sure it does not jam all the time)


Old age printer, prepare to replace the parts.
Step 1: Clean all paper path sensor, replace paper pick up rollers, seperation pads, check with out duplexer unit..
Step 2: Even paper jamming replace fuser assembly..
Step 3: Check with duplexer unit, clean deolexer sensors & rollers..

Nov 23, 2010 | HP LaserJet 4100dtn Printer

2 Answers

Hp 4250 laserjet is noisy and has numerous jams. page count is 137,619 maint kit has 39% left when searching event # 13.05.00 Fuser output paper late jam


Probebly the swing gear assy, this assy is driving the fuser, is defective. This is a common problem with these machines. Replacing the gear assy should solve your problem.

Feb 16, 2010 | HP LaserJet 4250n Printer

2 Answers

Copy/Printing machine jams


This tells me your DUPLEXER is the one causing the jam, Ok like when you open the duplexer do you see the paper in their
second does your copier indicae that the duplexer is in stalled ?m print the config page to verify. if it worked ok until this incident then your paper feed tires in your Duplexer is worn and needs to be replaced, do not do this yourself call a Service tech or A dealer to do so, uf your in CT we can help.

Mar 06, 2009 | Panasonic Workio DP-3530 Copier

3 Answers

Paper jams only while duplexing


Back door broken, diverter gate broken?
I would look for something like this. did the tech clean the duplexers tires??

I would also try a different duplexer if possible-paper path sensor may be dirty or obstructed

Mar 07, 2008 | HP LaserJet 4350 Printer

1 Answer

Duplexer problem


First, the machine always prints the first page first. Make sure you have the right driver (4 plus and not 4)and check the settings in the device settings of your printer driver on the pc. Also make sure the duplex unit is for the 4 plus and not the 4.

May 17, 2007 | HP LaserJet 4 plus Printer

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